AQuery/tests/best_profit.a

-- please run datagen.get_stock_data() to generate data/stock.csv first

create table ticks(ID varchar(10), timestamp int, tradeDate date, price int);

LOAD DATA INFILE "data/stock.csv"
INTO TABLE ticks
FIELDS TERMINATED BY ","

SELECT max(price-mins(price))
FROM   ticks    ASSUMING ASC timestamp
WHERE  ID="S"
    AND  tradeDate='2003-01-10'

create table base(ID varchar(10), name varchar(10));

LOAD DATA INFILE "data/base.csv"
INTO TABLE base
FIELDS TERMINATED BY ","

SELECT last(price)
FROM    ticks t, base b
    ASSUMING ASC name, ASC timestamp
WHERE   t.ID=b.ID
        AND name="x"

create table TradedStocks(ID varchar(15), SeqNo int, TradeDate date, TimeStamp time, Type varchar(5));
create table HistoricQuotes(ID varchar(15), TradeDate date, HighPrice real, LowPrice real, ClosePrice real, OpenPrice real, volume bigint);

LOAD DATA INFILE "data/tick-price-file.csv"
INTO TABLE TradedStocks
FIELDS TERMINATED BY "|"
LOAD DATA INFILE "data/hist-price-file.csv"
INTO TABLE HistoricQuotes
FIELDS TERMINATED BY "|"

select distinct ID, TradeDate 
into td 
from TradedStocks 
-- -- Monetdb wont recognize right table when 
-- -- doing a natural join

SELECT ID, avgs(10, ClosePrice)  
FROM   td  NATURAL JOIN
       HistoricQuotes 
              ASSUMING ASC TradeDate
GROUP BY ID